you can easily repair these and then after glass beading and powder coating, they will look great. From Eastwood, get some stuff called metal lab, it is like a bondo sort of material but can withstand the high temps of powder coating. Once dried , you can sand it down to smooth. Glass bead the parts first to show up anywhere it needs to be repaired as well as prepping for powder coating. I just did a couple of pipes for a fellow building a 2002 tii engine and they came out great. Both pipes were worst than what you have here.
Thanks, Rick